Perpetual Testing is the name of Valve’s Portal 2 DLC, coming to PC and Mac on May 8th. It’s basically a level editor that will mean users continue to supply you with testing chambers to play through. Forever.
Well, perhaps not forever, but for a while, at least. There’s no word yet as to whether this will make it onto other platforms but we can hope.
Predictably, for Valve and Portal, it’s quite funny.